Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
brúidiúlacht
←
Irish
brúidiúil
(affix)
←
Irish
-acht
(affix)
←
Old Irish
brùidealachd
(cognate)
→
Irish
brúid
(link)
→
Scottish Gaelic
brùidealachd
(cognate)